Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- CHECK FOR OTHER DTCS
- Turn the ignition on.
- With the scan tool, read DTCs.
Are either of the Exhaust Gas Temperature Catalyst Sensor Low or High DTCs present?
Yes
- Repair the other DTCs before proceeding.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
No
- Go To 2
- CHECK THE EXHAUST GAS TEMPERATURE CATALYST SENSOR OPERATION
- Remove the Exhaust Gas Temperature Catalyst Sensor and reconnect the harness connector to the sensor. Monitor the scan tool, while heating the sensor with an external heat source (DO NOT USE OPEN FLAME).
Does the reading from the sensor increase at least 5°F on the scan tool?
Yes
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
No
- Replace the Exhaust Gas Temperature Catalyst Sensor in accordance with the service information. Refer to SENSOR, EXHAUST TEMPERATURE, REMOVAL .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
- Remove the Exhaust Gas Temperature Catalyst Sensor and reconnect the harness connector to the sensor. Monitor the scan tool, while heating the sensor with an external heat source (DO NOT USE OPEN FLAME).